In order to cool computer chip efficiently with the least noise, a single phase water-cooling radiator for computer chip driven by piezoelectric pump with two parallel-connection chambers is developed. The structure a...In order to cool computer chip efficiently with the least noise, a single phase water-cooling radiator for computer chip driven by piezoelectric pump with two parallel-connection chambers is developed. The structure and work principle of this radiator is described. Material, processing method and design principles of whole radiator are also explained. Finite element analysis （FEA） software, ANSYS, is used to simulate the heat distribution in the radiator. Testing equipments for water-cooling radiator are also listed. By experimental tests, influences of flowrate inside the cooling system and fan on chip cooling are explicated. This water-cooling radiator is proved more efficient than current air-cooling radiator with comparison experiments. During cooling the heater which simulates the working of computer chip with different power, the water-cooling radiator needs shorter time to reach lower steady temperatures than current air-cooling radiator.展开更多
The aim of this research is to find the best way to take advantage of solar radiation in the lighting of sites to reduce reliance on electric power So In this paper, design and implementation of a pipe lamps contain o...The aim of this research is to find the best way to take advantage of solar radiation in the lighting of sites to reduce reliance on electric power So In this paper, design and implementation of a pipe lamps contain optical reflectors where three types of adoption of the lamps are different diameters and lengths with reflectors visual reflect solar radiation by 84% and tested practicable ＂in the laboratory room dimensions using Lux Meter device and enter the data in the program （surfer） the fee distribution of the intensity of radiation in the room laboratory ratios has been found that the intensity distribution of light inside the room are adversely affected＂ with the decrease in diameter of lamp At less intensity in half at reducing the tube diameter by 25% and increases with tube diameter, and vice versa for the impact of length where the intensity is light distribution higher when the lamp is tubular Short at the intensity of the radiation increases by 20% when you reduce the length of the tube in half, as well as show that weather factors such as dust and clouds adversely affected to the efficient functioning of the lamps and the intensity distribution of light in the room.展开更多
基金This project is supported by National Hi-tech Research and Development Program of China (863 Program, No. 2002AA404250)National Natural Science Foundation of China (No. 50575093).
文摘In order to cool computer chip efficiently with the least noise, a single phase water-cooling radiator for computer chip driven by piezoelectric pump with two parallel-connection chambers is developed. The structure and work principle of this radiator is described. Material, processing method and design principles of whole radiator are also explained. Finite element analysis （FEA） software, ANSYS, is used to simulate the heat distribution in the radiator. Testing equipments for water-cooling radiator are also listed. By experimental tests, influences of flowrate inside the cooling system and fan on chip cooling are explicated. This water-cooling radiator is proved more efficient than current air-cooling radiator with comparison experiments. During cooling the heater which simulates the working of computer chip with different power, the water-cooling radiator needs shorter time to reach lower steady temperatures than current air-cooling radiator.
文摘The aim of this research is to find the best way to take advantage of solar radiation in the lighting of sites to reduce reliance on electric power So In this paper, design and implementation of a pipe lamps contain optical reflectors where three types of adoption of the lamps are different diameters and lengths with reflectors visual reflect solar radiation by 84% and tested practicable ＂in the laboratory room dimensions using Lux Meter device and enter the data in the program （surfer） the fee distribution of the intensity of radiation in the room laboratory ratios has been found that the intensity distribution of light inside the room are adversely affected＂ with the decrease in diameter of lamp At less intensity in half at reducing the tube diameter by 25% and increases with tube diameter, and vice versa for the impact of length where the intensity is light distribution higher when the lamp is tubular Short at the intensity of the radiation increases by 20% when you reduce the length of the tube in half, as well as show that weather factors such as dust and clouds adversely affected to the efficient functioning of the lamps and the intensity distribution of light in the room.
